Series B450N Non-Thermal Aluminum Storefront System

Boyd's Series B450N is a non-thermal commercial aluminum storefront framing system engineered for a wide range of storefront configurations and applications. The ASTM-rated system has a 2" × 4.5" profile, accommodates glazing up to 1" thick, and provides dependable air, water, and structural performance for commercial storefront projects where a thermal barrier is not required.

Series B450N is available with Boyd's proprietary extrusions, inside- or outside-glazed configurations, screw-spline and shear-block fabrication options, standard or reinforced mullions, accompanying vents, commercial entrance coordination, and the storefront accessories needed to complete the selected opening.

A Boyd storefront representative can assist with Series B450N selection, storefront layouts, entrances, vents, accessories, finishes, fabrication requirements, and order preparation for all installation jobs—including rush jobs that require expedited shipping. Boyd can accept the order, carefully package the products, and ship the storefront in days. A full inventory of storefront-system accessories also allows Boyd to prepare, package, and ship accessory orders anywhere in the United States while cutting normal delivery times in half. To discuss details, place an order, or order storefront accessories, call 800.737.2800.

Series B450N Storefront Product Details

Series B450N dimensions, glazing capacity, thermal designation, and published ASTM performance:

Series B450N Product Data and Downloads

Use the current Boyd resource links below for B450N detail drawings, product specifications, storefront performance charts, installation instructions, related storefront systems, entrances, accessories, and finishes.

When to Use the Series B450N Storefront System

• Commercial storefront openings where a non-thermal aluminum framing path is appropriate and glazing up to 1 inch is required.

• Low-rise, ground-level, single-story glazed openings requiring a 2" face and 4.5" frame depth.

• Retail, office, education, healthcare, institutional, government, renovation, replacement, interior, and other commercial storefront applications.

• Projects requiring inside- or outside-glazed configurations and screw-spline or shear-block fabrication options.

• Storefront elevations requiring standard or steel-channel-reinforced mullion options based on opening dimensions and project wind loads.

• Fixed storefront glazing coordinated with commercial aluminum entrance doors, sidelites, transoms, thresholds, hardware, finishes, accompanying vents, and accessories.

• Rush-order storefront and accessory work where Boyd's inventory, attentive service, careful packaging, nationwide shipping, and ship-in-days capability can help support the installation schedule.

Choosing a Boyd Commercial Storefront System

You are viewing the B450N non-thermal storefront system with a 2" × 4.5" profile and glazing up to 1" thick. Storefront selection should begin with the required thermal tier, face dimension, frame depth, glazing thickness, entrance needs, ventilation, finish, water-management details, wind load, and opening conditions. Review the related systems below when the project requires a narrower face, 1/4-inch glazing, a thermal barrier, XT dual-thermal construction, a front-set glass plane, historic-replica framing, or zero-sightline ventilation.

Series B450N Storefront System Advantages

• Non-thermal commercial aluminum storefront framing for projects where a thermal barrier is not required.

• Engineered for various storefront configurations, making the system suitable for numerous commercial applications.

• A 2" × 4.5" storefront profile accommodates glazing up to 1" thick.

• Published ASTM performance includes 0.05 CFM/FT. air infiltration at 6.24 psf, 8.00 psf water resistance, and 25.06 psf structural performance.

• Inside- and outside-glazed configurations support varied glass-installation and replacement requirements.

• Screw-spline and shear-block configurations support varied fabrication and installation plans.

• Storefront performance charts include standard, 1-inch steel-channel-reinforced, and 3/4-inch steel-channel-reinforced B450N mullion options.

• Available with accompanying vents, commercial entrance coordination, Boyd proprietary extrusions, and the accessories needed for the selected storefront configuration.

• Anodized, painted, and project-specific finish options can be coordinated across storefront framing, entrances, exposed accessories, and adjacent materials.

• Boyd representatives support storefront selection, layouts, drawings, specifications, entrances, vents, accessories, order preparation, packaging, and installation planning.

• A full inventory of storefront accessories supports careful packaging, nationwide shipping, and shorter normal delivery times.

• Rush jobs and expedited shipping can be coordinated, with carefully packaged storefront orders shipped in days.

Common Series B450N Storefront Coordination Items

• Thermal strategy: B450N is a non-thermal storefront system. Confirm that a non-thermal framing path is appropriate for the building envelope, glazing, entrance, energy-code, condensation, and adjacent-wall requirements before final selection.

• Storefront versus curtain wall: Storefront framing is typically used at low-rise, ground-level, single-story openings. When an elevation spans multiple stories, crosses floor lines, or requires curtain-wall anchorage and movement accommodation, review a curtain-wall system instead.

• Glazing: Confirm the complete glass makeup, 1-inch maximum thickness, safety glazing, coatings, tint, heat treatment, edge conditions, setting blocks, gaskets, glazing stops, glass availability, and glazing responsibility.

• Inside- or outside-glazed configuration: Confirm the required glazing direction before finalizing storefront details, glass installation access, perimeter conditions, field sequencing, and replacement-glazing plans.

• Fabrication and shop drawings: Select screw-spline or shear-block construction and coordinate the required extrusions, fasteners, shear blocks, drill requirements, cut lists, shop drawings, frame assembly, opening identification, and field installation sequence.

• Air, water, and structural performance: Coordinate 0.05 CFM/FT. air infiltration at 6.24 psf, 8.00 psf water resistance, and 25.06 psf structural performance with opening dimensions, mullion spacing, reinforcement, glazing, anchorage, and installation conditions.

• Mullions and spans: Coordinate opening width and height, vertical- and horizontal-mullion spacing, wind pressure, glass weight, dead load, steel-channel reinforcement, expansion conditions, anchors, and intermediate horizontals. Final limitations should be reviewed by the project engineer.

• Water management: Coordinate subsill, end dams, sill flashing, weep paths, glazing pockets, perimeter sealants, backer materials, thresholds, adjacent construction, and field drainage conditions.

• Entrance integration: Coordinate the door series, entrance frames, single doors or pairs, sidelites, transoms, thresholds, panic hardware, closers, access control, clear openings, accessibility, glazing, and finish before release.

• Ventilation: Confirm the selected vent, B450N compatibility, glazing, sightlines, screen requirements, operating hardware, interior and exterior clearance, drainage, flashing, and installation details.

• Anchoring and perimeter conditions: Verify rough openings, field dimensions, substrates, anchors, fasteners, shims, perimeter joints, sealants, dissimilar-material isolation, trims, adaptors, and accessory scope against approved shop drawings.

• Finish and protection: Coordinate anodized or painted finish, color samples, exposed fasteners, entrance hardware, vents, accessories, adjacent materials, jobsite protection, cleaning, and touch-up requirements.

• Inventory, shipping, and installation sequence: Provide storefront and accessory quantities, required delivery date, opening priorities, packaging or sorting needs, site access, storage plan, fabrication responsibility, and installation sequence when expedited shipping or a rush order is required.

What to Send Boyd for a Series B450N Storefront Review

Send as much of the following project information as available:

• Project name, location, bid deadline, required response date, construction schedule, installation dates, and project contacts.

• Architectural drawings, elevations, storefront schedules, door schedules, hardware schedules, specifications, Division 08 requirements, and opening dimensions.

• Confirmation that the non-thermal B450N storefront system is appropriate, along with the 2-inch face, 4.5-inch frame depth, inside- or outside-glazed configuration, screw-spline or shear-block fabrication path, and installation responsibility.

• Glass makeup, glazing thickness up to 1 inch, safety glazing, coatings, tint, heat treatment, setting blocks, gaskets, glass stops, and glazing responsibility.

• Design pressures, 0.05 CFM/FT. air infiltration at 6.24 psf, 8.00 psf water resistance, 25.06 psf structural performance, mullion spacing, steel-channel reinforcement, expansion, anchorage, and project-engineer requirements.

• Storefront entrance requirements including selected door series, single doors or pairs, sidelites, transoms, thresholds, bottom rails, mid-rails, panic hardware, closers, access control, accessibility, clear openings, glazing, and finish.

• Vent requirements, screen needs, operation type, hardware, glazing, sightline, drainage, clearance, and storefront-compatibility requirements.

• Subsill, end-dam, sill-flashing, weep, perimeter-sealant, backer, anchor, fastener, substrate, adaptor, trim, and adjacent-construction details.

• Finish system, color, samples, accessory finish, entrance finish, exposed-fastener requirements, and adjacent-material coordination.

• Order quantities, extrusion or fabricated-frame scope, proprietary components, accessory package, delivery address, rush-order timing, packaging, opening-by-opening sorting, and installation sequencing needs.

Related Storefront, Entrance, Vent, and Architectural Resources

• Commercial aluminum storefront systems for non-thermal, thermally broken, XT dual-thermal, historic-replica, and vent selection guidance.

• Commercial aluminum storefront doors and entrance systems for narrow-, medium-, wide-, and XT thermal-stile door coordination.

• Series SV100 Zero-Sightline Vents for compatible storefront and curtain-wall openings requiring operable ventilation with minimal visual interruption.

• Commercial storefront and window accessories for subsills, mullions, adaptors, anchors, trim, perimeter components, and installation coordination.

• Storefront and curtain-wall applied architectural muntins for divided-lite, simulated-steel, and historic-grid appearance.

• Commercial curtain-wall systems for elevations that extend beyond typical storefront height, movement, anchorage, or multi-story conditions.

• Commercial aluminum finish options for anodized, painted, and project-specific storefront, entrance, vent, and accessory finishes.

• Commercial storefront project resources for installation instructions, quote forms, job-information forms, terms, warranty references, and service documents.

• Architectural resources, CAD details, product specifications, and project support for project documentation.